How to transform axial fan control system

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One we introduce a selection of exhaust fan needs attention, in fact, pay attention to the above points, you can use it, we explain how to transform the control system of the axial fan.
 1 fan entrance disheartened smart disheartened by the degree of installation
    In the population of the original fan, 3:00 Temperature manufacturers with Kai mounted platinum resistance, with the integration of temperature change, but the certified at three platinum resistance-tolerance up to serious 10tt, mounted on the likely did not occur to protect themselves from time to time action for the be improved, the choice of diameter 1.5mm Julius installed E-type thermocouple, all qualified certificated and equipped in the FOXBORO Company production RTT-I type of temperature change, and its range can be arbitrarily changed. After this improvement, the range of 0 to 100 ° C can be used to make hardware more reliable in the temperature of self-preservation.
    (2) the anti-surge system
    Take two forms of anti-asthma vibrat ion is correct, increase the fan outlet pressure. The original fan anti-surge just take a little fan outlet pressure signal, to ensure that the parameter measuring the accuracy of the action, added to the main air outlet pressure of 2, using a PMK programming after direct output to the relay solenoid valve to two anti- surge vent valve.
Vent valve actuator improvements
    Axial flow fan 1 # 2 # vent valve actuator is good or bad, related to the anti-surge and anti-counter-current control and self-protection can be smoothly. After installation and butterfly itself with pneumatic actuator .1 # (DgI50) vent valve does not control the actuator feedback oscillation serious # 2 vent valve actuator problems, the only self-protection actions. Since the installation of the # 1 vent valve has been replaced by the the cam deflection valve for manual adjustment. \\ Vent valve self-protection action. To solve this problem. Device overhaul entirely on the 3-valve actuator be replaced, commissioned the Jiujiang Instrument Factory specially designed dual-channel electro-hydraulic implement agency DYSD After transformation, the effect is very satisfied with. Its application is the complete eradication of the executive body of the hidden equipment and laid the foundation for the safe operation of unit.
(4) other improvements
    (1) of the fan population flow in the original chassis flow, but also added a the Annubar meter operating room display.
    (2) for the main air outlet pressure during the winter freeze bite compensation flow value times the original value of 60% of the phenomenon, with the hotline to prevent freeze.
    (3) For self-protection with the solenoid valves, relays, are impo rted electromagnetic valve and the relay had flooded its filters for the air to increase the action to make it accurate.
    (4) The static leaf angle control the constant flow electro-hydraulic implementing agencies machinery 21 \\ hard limit.